feat: v1.6.0 — wizard enhancements, persona fix, paid template variable preview

[GeiserX]

Summary

• MCP Servers config: New wizard field (CLI + WebUI) to list MCP servers. Generated output tells the AI to use them when relevant.
• Workaround behavior toggle: Control whether AI attempts workarounds or stops to ask.
• Infrastructure questions: SSH access (key path) and manual deployment method (Portainer, Docker Compose, K8s, bare metal).
• Burke Holland-inspired AI rules: code_for_llms, self_improving, verify_work, terminal_management, check_docs_first.
• Paid template variable preview: Locked templates now show customizable variables before purchase.
• Persona wording fix: "Developer background: X. Adapt..." instead of "I am X" or "You are X".
• CLI shared package refactor: Languages, frameworks, databases, test frameworks imported from shared package.
• Socialify banner in README, XCTest in test frameworks, ClickHouse doc cleanup.
• Version bump to 1.6.0.

Test plan

• CLI wizard runs without errors (npx lynxprompt init)
• WebUI wizard renders new fields (MCP, workarounds, infra)
• Generated AGENTS.md includes persona, MCP, workaround, and infra sections
• Paid template detail page shows variable badges when not purchased
• Burke Holland rules appear in AI behavior selection